Steam iron



FIG. 1 is a front, left side perspective view of a steam iron showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is the left side view thereof, partially broken away and shown inpartial cross-section along the path of line 8—8 in FIG. 4.

The broken line showing is of environmental material and forms no part of the present design. 

The ornamental design for a steam iron, as shown and described. 